In a lot of scientists, the ratio of wonder to skepticism declines in time. That may be connected with the fact that in some fields-mathematics, physics, some others-the great discoveries are almost entirely made by youngsters.

Better the hard truth, I say, than the comforting fantasy.

A new consciousness is developing which sees the earth as a single organism and recognizes that an organism at war with itself is doomed. We are one planet.

We were wanderers from the beginning.

We are, each of us, a multitude. Within us is a little universe.

All of the books in the world contain no more information than is broadcast as video in a single large American city in a single year. Not all bits have equal value.

For years I've been stressing with regard to UFOs that extraordinary claims require extraordinary evidence.